  /* 版心样式 */
  
  .center {
      width: 1200px;
      height: 100%;
      margin: 0 auto;
  }
  /* 轮播 */
  
  .banner {
      width: 100%;
      height: 700px;
      /* background-color: pink; */
      background: url(../img/index/banner.jpg) no-repeat center;
      background-size: cover;
  }
  /* 项目 */
  
  .project {
      width: 100%;
      /* height: 573px; */
      /* background-color: royalblue; */
  }
  /* 产品 */
  
  .product {
      width: 100%;
      /* height: 1171px; */
      /* background-color: sienna; */
  }
  /* 服务 */
  
  .service {
      width: 100%;
      height: 932px;
      /* background-color: teal; */
  }
  /* 新闻 */
  
  .news {
      width: 100%;
      /* height: 832px; */
      /* background-color: yellow; */
  }
  /* 关于我们 */
  
  .about {
      width: 100%;
      height: 610px;
      /* background-color: wheat; */
  }
  /*版块头 */
  
  .c-title {
      margin-top: 120px;
  }
  
  .c-title h3 {
      margin: 0;
      font-size: 30px;
      color: #767676;
  }
  
  .c-title p {
      margin: 6px 0;
      font-size: 12px;
      color: #767676;
  }
  
  .c-title .line-l {
      float: left;
      width: 60px;
      height: 1px;
      background-color: #a1a1a1;
  }
  
  .c-title .line-r {
      float: right;
      width: 300px;
      height: 1px;
      background-color: #a1a1a1;
  }
  /* banner */
  
  .banner .banner-c {
      position: relative;
  }
  
  .banner .nav {
      position: absolute;
      left: 50%;
      bottom: 16px;
      margin: 0;
      padding: 0;
      margin-left: -60px;
  }
  
  .banner .nav-item a {
      display: block;
      width: 100%;
      height: 100%;
  }
  
  .banner .nav .nav-item {
      float: left;
      width: 8px;
      height: 8px;
      margin: 0 5px;
      background-color: #FFF;
      border-radius: 50%;
      border: 3px solid transparent;
      background-clip: content-box;
      cursor: pointer;
  }
  
  .banner .nav .nav-item:hover {
      background-color: #668aca;
      border: 3px solid #FFF
  }
  /* 项目 nav*/
  
  .project .subnav {
      width: fit-content;
      height: 100px;
      margin: 16px auto;
      padding: 0;
  }
  
  .project .subnav .subnav-item {
      float: left;
      width: 100px;
      height: 100px;
      position: relative;
  }
  
  .project .subnav-item a {
      display: block;
      height: 100%;
      width: 100%;
      font-size: 14px;
      color: #767676;
      text-align: center;
      line-height: 100px;
  }
  
  .project .subnav-item .line-v {
      position: absolute;
      width: 1px;
      height: 8px;
      right: 0;
      top: 50%;
      background-color: #767676;
      margin-top: -4px;
  }
  
  .project .subnav-item a:hover {
      font-size: 18px;
      color: #668aca;
  }
  
  .project .subnav-item:hover .line {
      display: block;
      margin: 0 auto;
      background-color: #668aca;
      width: 10px;
      height: 1px;
      margin-top: -35px;
      opacity: 1;
  }
  /* 项目main */
  
  .project .main {
      margin: 0 auto;
      font-size: 14px;
      color: #767676;
  }
  
  .project .card {
      float: left;
      width: 360px;
      height: 270px;
      position: relative;
  }
  
  .project .card img {
      width: 360px;
      height: 180px;
  }
  
  .project .info {
      display: block;
      width: 100%;
      height: 90px;
      position: relative;
  }
  
  .project .info p {
      margin: 0 0 0 50px;
  }
  
  .project .info .city {
      margin: 28px 0 7px 50px;
      font-size: 14px;
      height: 14px;
      color: #767676;
  }
  
  .project .info .msg {
      font-size: 12px;
  }
  
  .project .info span {
      position: absolute;
      width: 30px;
      height: 30px;
      background: url(../img/index/card-iconf.png);
      bottom: 30px;
      right: 50px;
  }
  
  .project .card .mask {
      position: absolute;
      left: 0;
      top: 0;
      background-color: rgba(0, 0, 0, .5);
      width: 360px;
      height: 270px;
      border-radius: 9px;
      opacity: 0;
  }
  
  .project .mask .msg {
      color: #fff;
      font-size: 12px;
      width: 252px;
      float: left;
      margin-left: 50px;
      margin-top: 58px;
      line-height: 25px;
  }
  
  .project .msg .title {
      font-size: 14px;
      height: 15px;
      margin: 0 0 4px;
  }
  
  .project .msg .title-vice {
      height: 12px;
      font-size: 12px;
      margin: 0;
  }
  
  .project .msg .content {
      margin-top: 20px;
  }
  
  .project .msg span a {
      display: block;
      width: 35px;
      height: 35px;
  }
  
  .project .msg span {
      position: absolute;
      background: url(../img/index/card-iconf2.png);
      right: 50px;
      bottom: 60px;
  }
  
  .project .card:hover .mask {
      opacity: 1;
  }
  
  .project .card:hover .info {
      display: none;
  }
  
  .project .card:hover img {
      width: 100%;
      height: 100%;
  }
  
  .project .card.me0 {
      margin: 0 60px;
  }
  /* 产品 */
  /* 导航 */
  
  .product .subnav {
      height: 96px;
      width: fit-content;
      margin: 55px auto 0;
  }
  
  .product .subnav .nav {
      float: left;
      width: 164px;
      height: 100%;
      margin-right: 40px;
  }
  
  .product .subnav .nav .picture {
      display: block;
      width: 100%;
      height: 86px;
  }
  
  .product .subnav .nav .picture img {
      margin: 0 auto;
      margin-top: 10px;
  }
  
  .product .subnav .nav a {
      display: block;
      width: fit-content;
      height: 30px;
      text-align: center;
      line-height: 30px;
      font-size: 10px;
      color: #767676;
      margin: 0 auto;
  }
  
  .product .subnav .nav a .big {
      font-size: 14px;
  }
  
  .product .subnav .nav .line {
      display: block;
      width: 20px;
      height: 1px;
      background-color: #668aca;
      margin: 0 auto;
      opacity: 0;
  }
  
  .product .subnav .nav:hover .picture {
      background-color: #668aca;
      border-radius: 7px;
  }
  
  .product .subnav .nav:hover .line {
      opacity: 1;
  }
  
  .product .subnav .nav:hover a {
      color: #668aca;
      font-size: 14px;
  }
  
  .product .nav:hover a .big {
      font-size: 16px;
  }
  /* 手动activity */
  
  .product .subnav .activity .picture {
      background-color: #668aca;
      border-radius: 7px;
  }
  
  .product .subnav .activity .line {
      opacity: 1;
  }
  
  .product .subnav .activity a {
      color: #668aca;
      font-size: 14px;
  }
  
  .product .subnav .activity a .big {
      font-size: 16px;
  }
  /* 产品模块 */
  
  .product .module {
      width: 100%;
  }
  
  .product .list {
      margin-top: 110px;
  }
  
  .product .list .list-item {
      float: left;
      width: 360px;
      height: 360px;
      position: relative;
  }
  
  .product .module .list-item .picture {
      width: 360px;
      height: 320px;
  }
  
  .product .module .picture img {
      width: 100%;
      height: 100%;
  }
  
  .product .module .info {
      width: fit-content;
      height: 40px;
      color: #767676;
      margin: 0 auto;
  }
  
  .product .module .info p {
      margin: 0;
      font-size: 16px;
  }
  
  .product .module.info span {
      font-size: 12px;
  }
  
  .product .list-item .mask {
      position: absolute;
      width: 360px;
      height: 320px;
      background: rgba(0, 0, 0, 0.5);
      left: 0;
      top: 0;
      color: #f8f8f8;
      border-radius: 8px;
      opacity: 0;
  }
  
  .product .mask h2 {
      position: absolute;
      margin: 0;
      width: 23px;
      height: 25px;
      top: 120px;
      left: 84px;
      color: #f8f8f8;
      font-size: 30px;
      font-weight: normal;
  }
  
  .product .mask span {
      position: absolute;
      width: 80px;
      height: 1px;
      background-color: #f8f8f8;
      left: 0;
      top: 154px;
  }
  
  .product .mask p {
      margin: 0;
      position: absolute;
      left: 70px;
      bottom: 100px;
      font-size: 14px;
      line-height: 25px;
  }
  
  .product .mask p em {
      font-style: normal;
      font-size: 16px;
      margin-bottom: 12px;
  }
  
  .product .list-item:hover .info {
      display: none;
  }
  
  .product .list-item:hover .mask {
      opacity: 1;
  }
  /* 手动activity */
  
  .product .list .activity .info {
      display: none;
  }
  
  .product .list .activity .mask {
      opacity: 1;
  }
  
  .product .list .list-item.me0 {
      margin: 0 30px;
  }
  /* 服务 */
  
  .c-title.center {
      margin-bottom: 60px;
  }
  
  .service {
      width: 100%;
      height: 700px;
      background: url(../img/index/service.jpg) no-repeat center;
      background-size: cover;
  }
  
  .service-c {
      position: relative;
  }
  
  .service .msg {
      position: absolute;
      width: 370px;
      left: 0;
      top: 150px;
  }
  
  .service .msg h2 {
      color: #fff;
      font-size: 30px;
      font-weight: 100;
      margin: 0 0 43px 0;
      height: 23px;
  }
  
  .service .msg p {
      color: #fff;
      font-size: 14px;
      line-height: 25px;
      font-weight: 100;
  }
  
  .service .subnav {
      display: block;
      margin: 0 auto;
      height: 150px;
      width: fit-content;
      /* margin-bottom: 149px; */
  }
  
  .service .subnav .subnav-item {
      float: left;
      width: 248px;
      height: 148px;
      border: 1px solid #3a3743;
      /* opacity: .2; */
      margin-top: 400px;
      text-align: center;
      position: relative;
      color: #fff;
  }
  
  .service .subnav-item h2 {
      font-size: 16px;
      height: 17px;
      color: #f7f8fc;
      margin-top: 41px;
  }
  
  .service .subnav-item span {
      display: block;
      width: 30px;
      height: 1px;
      background-color: #fff;
      margin: 13px auto;
  }
  
  .service .subnav-item p {
      font-size: 12px;
      height: 10px;
      color: #ddfcf2;
  }
  
  .service .subnav-item:hover {
      background-color: #668aca;
      border: 1px solid #668aca;
  }
  
  .service .subnav-item.activity {
      background-color: #668aca;
      border: 1px solid #668aca;
  }
  /* 新闻 */
  
  .news .main {
      width: 100%;
      /* background-color: pink; */
      height: 570px;
      margin-top: 60px;
      cursor: pointer;
  }
  
  .news .main .main-item-l {
      float: left;
      width: 570px;
      height: 570px;
      /* background-color: lightblue; */
  }
  
  .news .main-item-l .on-box {
      background: url(../img/index/news1.jpg) no-repeat center;
      background-size: cover;
      width: 570px;
      height: 270px;
      position: relative;
  }
  
  .news .on-box .mask {
      opacity: 0;
      position: absolute;
      left: 0;
      bottom: 0;
      width: 100%;
      height: 90px;
      background-color: rgba(0, 0, 0, .5);
      color: #fff;
  }
  
  .news .on-box .mask h3 {
      margin: 11px 0 16px;
      font-size: 16px;
      font-weight: 100;
      height: 17px;
      padding-left: 50px;
  }
  
  .news .on-box .mask p {
      margin: 0;
      font-size: 12px;
      width: 325px;
      padding-left: 50px;
      line-height: 20px;
  }
  
  .news .on-box .mask span {
      position: absolute;
      width: 30px;
      height: 30px;
      bottom: 12px;
      right: 50px;
      background: url(../img/index/card-iconf2.png) no-repeat center;
      background-size: cover;
  }
  
  .news .on-box:hover .mask {
      opacity: 1;
  }
  
  .news .main-item-l .un-box {
      margin-top: 30px;
      width: 570px;
      /* height: 270px; */
  }
  
  .news .un-box .box-left {
      float: left;
      width: 270px;
      height: 270px;
      background: url(../img/index/news2.jpg) no-repeat center;
      background-size: cover;
  }
  
  .news .un-box .box-right {
      float: right;
      width: 270px;
      height: 270px;
      background: url(../img/index/news3.jpg) no-repeat center;
      background-size: cover;
  }
  
  .news .main .main-item-r {
      float: right;
      width: 570px;
      height: 570px;
      background: url(../img/index/news4.jpg) no-repeat center;
      background-size: cover;
  }
  /* 新闻 */
  
  .about .main {
      margin-top: 60px;
      width: 100%;
      /* height: 510px; */
  }
  
  .about .main .main-left {
      float: left;
      height: 300px;
      width: 500px;
      background: url(../img/index/about.jpg) no-repeat center;
      background-size: cover;
  }
  
  .about .main .main-right {
      float: right;
      height: 300px;
      width: 670px;
      /* background-color: pink; */
  }
  
  .about .main .main-right p {
      font-size: 14px;
      /* height: 63px; */
      color: #767676;
      margin: 0;
      margin-top: 30px;
      line-height: 23px;
      letter-spacing: -0.3px;
  }